This was one of stalin's goals in eastern europe a. to allow free elections b. to stop the spread of communism c. to spread communism into the area d. to allow for free speech and freedom of the press just alittle of 20 points with a free copy off warframe

c is the answer to the question

angle a = 40.6°

step-by-step explanation:

for any right angle triangle we know the pythagoras theorem reveals

hypotenuse² = height²+base²

by this formula we will calculate the length of hypotenuse

h² = 6²+7²

⇒ h =√36+49 = √85 = 9.22

now from the given triangle sin a = height/ hypotenuse

                                                sin a = 6/9.22 = 0.651

therefore

so angle a = 40.6°

did you check the study guide?